This paper proposes a new method of sensorless vector control for induction motors, in which the motor speed is estimated by both instantaneous reactive power and variation of magnetizing current.
提出了一种异步电机无速度传感器矢量控制的新方法，用瞬时无功功率和励磁电流变化来估计电机转速。
2
Instantaneous center of rotation-velocity vectormethod is the integration of instantaneous center of rotation analysis and velocity vectormethod.
将瞬心分析与速度矢量法相结合的瞬心—速度矢量法较转化机构法更为清晰、明了、直观。
3
Thirdly, this paper introduces academic base used in this equipment , mainly are instantaneous Var power theory and Special VectorMethod for generating pulse used springing IGBT;